trunk/src/tests/junit/org/apache/tools/ant/types/EnumeratedAttributeTest.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

package org.apache.tools.ant.types;

import junit.framework.TestCase;

import org.apache.tools.ant.BuildException;

/**
 * JUnit 3 testcases for org.apache.tools.ant.EnumeratedAttribute.
 */
public class EnumeratedAttributeTest extends TestCase {

    private static String[] expected = {"a", "b", "c"};

    public EnumeratedAttributeTest(String name) {
        super(name);
    }

    public void testContains() {
        EnumeratedAttribute t1 = new TestNormal();
        for (int i=0; i<expected.length; i++) {
            assertTrue(expected[i]+" is in TestNormal",
                   t1.containsValue(expected[i]));
            assertTrue(expected[i].toUpperCase()+" is in TestNormal",
                   !t1.containsValue(expected[i].toUpperCase()));
        }
        assertTrue("TestNormal doesn\'t have \"d\" attribute",
               !t1.containsValue("d"));
        assertTrue("TestNull doesn\'t have \"d\" attribute and doesn\'t die",
               !(new TestNull()).containsValue("d"));
    }

    public void testFactory() {
		Factory ea = (Factory)EnumeratedAttribute.getInstance(Factory.class, "one");
		assertEquals("Factory did not set the right value.", ea.getValue(), "one");
		try {
	    	EnumeratedAttribute.getInstance(Factory.class, "illegal");
	    	fail("Factory should fail when trying to set an illegal value.");
		} catch (BuildException be) {
			// was expected
		}
	}

	public void testExceptions() {
        EnumeratedAttribute t1 = new TestNormal();
        for (int i=0; i<expected.length; i++) {
            try {
                t1.setValue(expected[i]);
            } catch (BuildException be) {
                fail("unexpected exception for value "+expected[i]);
            }
        }
        try {
            t1.setValue("d");
            fail("expected exception for value \"d\"");
        } catch (BuildException be) {
        }
        try {
            (new TestNull()).setValue("d");
            fail("expected exception for value \"d\" in TestNull");
        } catch (BuildException be) {
        } catch (Throwable other) {
            fail("unexpected death of TestNull: "+other.getMessage());
        }
    }

    public static class TestNormal extends EnumeratedAttribute {
        public String[] getValues() {
            return expected;
        }
    }

    public static class TestNull extends EnumeratedAttribute {
        public String[] getValues() {
            return null;
        }
    }

    public static class Factory extends EnumeratedAttribute {
    	public String[] getValues() {
    		return new String[] { "one", "two", "three" };
    	}
    }
    
}